From duwsh; the leaper, i.e. An antelope -- pygarg.
see HEBREW duwsh
H1788. dishon
I. דִּישֹׁן noun [masculine] a clean animal, ᵐ5 πύγαργος compare ᵑ9; hence AV RV & most
pygarg, a kind of antelope or gazelle, compare Di Leviticus 11:2f.; perhaps rather mountain-goat, HomNS 391 compare Ethiopic version [ᵑ8̈]; only Deuteronomy 14:5 — (Homl.c. derives from √ דושׁ with kindred meaning of spring, leap & compare Assyrian daššu; so already DlS i. 54).